Golden Darkness (金色の闇 Konjiki no Yami), mostly referred to by other characters as Yami, is a major character in To Love-Ru and has increased importance as a character in To Love-Ru Darkness. She is a lonely assassin who is initially hired by Lacospo, one of Lala's arranged suitors, to kill Rito Yuuki. But when Lacospo effectively annuls the job, she decides to take her time and, under the pretense of still needing to complete her mission to kill Rito, stays on Earth. As she spends more time on Earth, she builds a very strong relationship with Rito's mature younger sister, Mikan Yuuki and to Rito himself, to whom it is very possible that she developed feelings for (Chapter 158 of the manga; In "To Love Ru Darkness" Chapters 001 and 002, Momo realizes that Yami is attracted to Rito).